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Get started13 Dagmar Terrace is a four-bedroom mid-terrace house in Islington, London, London (N1 2BN). It has a recorded floor area of 145 m² (around 1561 sq ft), construction records dating it to before 1900 and council tax band G. The latest certificate (October 2025) shows a C (score 73). When first surveyed in April 2023 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Good and window efficiency went from Very Poor to Good; while hot-water efficiency dropped from Good to Average and main heating dropped from Good to Average. Main heating runs on electricity. Period features are noted in the property record.
Sale prices here have outpaced London HPI: 6.8% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£1,230/sq ft) was about 108.9% above the typical sold price in the postcode. At 145 m² the property is well over the postcode median (111 m² across 17 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 71% of similar EPCs). 2 planning records sit against the property, 2 approved, 0 refused. Past consents include new windows, meaningful when judging how the property has evolved. Most recent transfer: August 2023 at £1,920,000.
13 Dagmar Terrace's carbon output is low for the local stock.
Conversion of existing butterfly roof to a roof terrace with access through a retained section of the butterfly roof. Installation of a metal handrail to the rear elevation.
13 Dagmar Terrace has more than quadrupled in price since its earliest registered sale in 1997.
£2,056,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.8% per year over 26 years.
£1,920,000
Growth on file: 6.8% per year over 26 years.
13 Dagmar Terrace outperforms the street on co₂ emissions by a wide margin.
Price per m²
£13,241
Street avg £10,381
Floor Area
145 m²
Street avg 133 m²
Habitable Rooms
6 rooms
Rail-style transport is unusually close for this postcode.
Crime
10/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Cross Street / Dagmar Terrace — bus stop.

Daytime· 07:00 – 23:00
56.9dB

Changes detected from historical EPC data
Heat pump installed, significantly improving energy efficiency
Changed to a more efficient fuel source
Heating controls upgraded for better temperature management
Hot water efficiency decreased
Single glazing replaced with double or better glazing
Wall insulation improved
Roof insulation improved
Floor insulation added or improved
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
Replacement of single-glazed timber sliding sash and two casement windows with matching slimline double-glazed hardwood windows, and replacement of rear garden timber door with wider thermally-broken aluminium frame double glazed French doors
10 August 2023Most recent
£1,920,000
+144.6%over 22 years25 May 2001
£785,000
+134.3%over 4 years21 March 1997
£335,000
Median price across the last 5 sales in N1 2BN: £1,674,000 (2025–2023).
Street avg 5 rooms
CO₂ Emissions
0.8 t/year
Street avg 5.8 t/year
N1 2AB
Closest school
0.1 km
St Mary's CofE Primary School. 97 schools nearby.
Night-time· 23:00 – 07:00
47.0dB
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